TY - JOUR
T1 - Synthesis, characterization, structure, redox property, antibacterial and catalytic activity of tridentate Schiff base cobalt(III), nickel(II) and palladium(II) complexes
AU - Pattanayak, Poulami
AU - Pratihar, Jahar Lal
AU - Patra, Debprasad
AU - Lin, Chia Her
AU - Paul, Sobhana
AU - Chakraborty, Kausiki
N1 - Funding Information:
Special thank to Professor Surajit Chattopadhyay, University of Kalyani, for his valuable suggestions throughout this work. The authors are grateful to Prof. P.K. Bag, Department of Biochemistry, University of Calcutta, for his valuable guidance during the study of microbial activity. Author PP acknowledged to DST under WOS-A (Sanction No. SR/WOS-140/2011) and JP acknowledged to University Grants Commission (under Minor Research Project, Sanction No. F.PSW/067/2011-12). The necessary laboratory and infrastructural facility are provided by the Department of Chemistry, Kandi Raj College and Department of Chemistry, University of Kalyani.
PY - 2013/3/4
Y1 - 2013/3/4
N2 - Ligand, HL, 2-((2-(benzylthio)phenylimino)methyl)phenol, upon reaction with Co(NO3)3·6H2O, Ni(OAc) 2·4H2O and PdCl2 separately afforded complexes [(L)2Co]NO3 (1), [(L)2Ni] (2) and [(L)PdCl] (3) respectively. The new complexes were characterized by usual spectroscopic studies like UV-Vis, IR and NMR and authenticated by X-ray structure determination on [(L)2Co]NO3, [(L) 2Ni]. The analysis of crystal structures revealed that in all the complexes the ligand HL binds the metal center as uni-negative anion; L - dissociating phenolic proton and offers (O, N, S) tridentate binding mode to the metal. The compound [Co(L)2]NO3 is tested for in vitro antibacterial activity. Complex 3, acts as a catalyst in Heck reaction for a number of substrates. Complexes 1 and 2 exhibited a quasi reversible oxidative responses at 0.97 and 0.85 V, respectively, versus SCE. The electronic spectra and redox properties of the complexes have been explained with DFT computation.
AB - Ligand, HL, 2-((2-(benzylthio)phenylimino)methyl)phenol, upon reaction with Co(NO3)3·6H2O, Ni(OAc) 2·4H2O and PdCl2 separately afforded complexes [(L)2Co]NO3 (1), [(L)2Ni] (2) and [(L)PdCl] (3) respectively. The new complexes were characterized by usual spectroscopic studies like UV-Vis, IR and NMR and authenticated by X-ray structure determination on [(L)2Co]NO3, [(L) 2Ni]. The analysis of crystal structures revealed that in all the complexes the ligand HL binds the metal center as uni-negative anion; L - dissociating phenolic proton and offers (O, N, S) tridentate binding mode to the metal. The compound [Co(L)2]NO3 is tested for in vitro antibacterial activity. Complex 3, acts as a catalyst in Heck reaction for a number of substrates. Complexes 1 and 2 exhibited a quasi reversible oxidative responses at 0.97 and 0.85 V, respectively, versus SCE. The electronic spectra and redox properties of the complexes have been explained with DFT computation.
KW - Antibacterial activity
KW - Crystal structure
KW - DFT
KW - Heck reaction
KW - Redox
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U2 - 10.1016/j.poly.2013.01.010
DO - 10.1016/j.poly.2013.01.010
M3 - Article
AN - SCOPUS:84873479970
SN - 0277-5387
VL - 51
SP - 275
EP - 282
JO - Polyhedron
JF - Polyhedron
IS - 1
ER -